Search/CVE-2019-0197
● CVE — Medium

CVE-2019-0197

Vendorfedoraproject, canonical, opensuse, oracle, apacheProductfedora, ubuntu linux, leap, http server, enterprise manager ops center, retail xstore point of service, jboss core services, communications session report manager, communications session route manager, instantis enterprisetrackDiscoveredJun 11, 2019UpdatedNov 21, 2024

A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. Server that never enabled the h2 protocol or that only enabled it for https: and did not set "H2Upgrade on" are unaffected by this issue.

View graph Watch Export
CVSS v3.1
4.2 MEDIUM
EPSS
8.29%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Nov 6, 2026
▼ 0.46pp
8.74% → 8.29% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityHIGH
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityNONE
IntegrityLOW
AvailabilityLOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Connections
12 relationships
Timeline
disclosure → media coverage
Jun 11, 2019
Disclosure — published as a CVE record. · last revised by NVD Nov 21, 2024